Władysław Wilczyński - the great mathematician and our Professor
Chapter 1. On Some Generalizations of the Density Topology
1 The comparison of ƒ-density and Ψ-density ................... 23
Tomasz Filipczak
2 A topology stronger than the Lebesgue density topology ...... 29
Wojciech Wojdowski
3 On the comparison of the density type topologies generated
by sequences on the plane ................................... 37
Grażyna Horbaczewska
4 Remark on the regular density on the plane .................. 45
Sebastian Lindner
5 No abstract density topology is Čech-complete ............... 50
Alicja Kierus
6 Some remarks about continuous functions with respect to
(s)-density topology ........................................ 53
Anna Loranty
Chapter 2. Special Subsets of the Real Line
7 On non-measurable subsets of the real line .................. 65
Zygfryd Kominek
8 Ψ-superporosity ............................................. 69
Ewa Łazarow and Krystian Rychert
9 On the universal σ-ideals ................................... 77
Jacek Hejduk and Katarzyna Flak
10 Duality Principle for microscopic sets ...................... 83
Aleksandra Karasińska, Wiesława Poreda and Elżbieta
Wagner-Bojakowska
Chapter 3. Some Properties of Real Functions
11 On the points of one-sided and bilateral cliquishness ....... 91
Ján Borsík
12 On  Г approximation of functions by means of derivatives
and approximately continuous functions having local
periodic property .......................................... 101
Helena Pawlak and Ryszard J. Pawlak
13 On a convergence of sequences of functions ................. 1ll
Zbigniew Grande
14 Almost uniform convergence of Riemann integrable
functions .................................................. 117
Jacek Jędrzejewski
15 On Hamel-Iike functions .................................... 122
Tomasz Natkaniec
16 Measurability of functions with equal closures of graphs ... 130
Małgorzata Terepeta
Chapter 4. Miscellaneous
17 On a question of Šalát ..................................... 143
Marek Balcerzak
18 Some remarks on inner MB-representable algebras ............ 148
Artur Bartoszewicz and Andrzej Kowalski
19 Vector convex differences and Hermite-Hadamard type
inequalities ............................................... 157
Roman Ger
20 Two refinements of the Riemann derangement theorem ......... 165
Franciszek Prus-Wiśniowski
21 On curves possessing parametrizations whose derivatives
are separated from zero .................................... 173
Małgorzata Turowska
22 Local systems and some classes of operators ................ 183
Rafał Zduńczyk
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